2019 Volume 73 Issue 1 Pages 65-70
This paper discusses the chemical and physical properties of fly ash （FA） treated by electrostatic belt separation method. Hydration of FA cement containing treated FA is also investigated. Chemical composition and mineral composition of treated FA are not changed compared to original or untreated FA. But loss on ignition of treated FA is drastically decreased by separation method. The fluidity of paste with superplasticizer can be improved by using of treated FA containing less than 1％ unburned carbon. The reaction of cement in FA cement with treated FA is accelralated The reaction rate of treated FA is larger than that of original FA. Type of FA such as FT or F is not influenced on calcium aluminate hydrates.
